Air compressor housing screw fastening device and screw fastening method

Abstract

This invention discloses a screw-fastening device and method for air compressor housings, including a frame, a conveyor line arranged along the X-axis on the frame, several fixtures conveyed along the conveyor line, and a first screw-fastening mechanism and a second screw-fastening mechanism arranged on the frame for fastening screws. Advantages: By using the first and second screw-fastening mechanisms to fasten screws to different screw holes on the same housing sequentially, compared to using only one screw-fastening mechanism, the time each product spends in the first and second screw-fastening mechanisms is shorter, thus improving efficiency.

Description

Technical Field

[0001] This invention relates to the field of air compressors, specifically to a screw-locking device and method for an air compressor housing. Background Technology

[0002] During the manufacturing process of air compressors, screws need to be tightened into the threaded holes at the ends of the outer casing to close all parts of the casing. Existing methods use a screw-tightening machine to tighten the screws, which is not efficient in ensuring the proper tightening of the outer casing.

[0003] Therefore, it is necessary to provide a screw-locking device and a screw-locking method for an air compressor housing. Summary of the Invention

[0004] The present invention provides a screw-locking device and method for an air compressor housing, which effectively solves the problem of low screw-locking efficiency of the air compressor housing screw-locking device.

[0005] The technical solution adopted in this invention is: An air compressor housing screw fastening device includes a frame, a conveyor line arranged along the X-axis on the frame, several fixtures conveyed along the conveyor line, and a first screw fastening mechanism and a second screw fastening mechanism arranged on the frame for fastening screws.

[0006] Furthermore, the first screw-locking mechanism includes a first pressing assembly, a first lifting assembly, and a first locking assembly mounted on the frame. The first pressing assembly includes a first support A mounted on the frame and several first elastic pressing components mounted on the first support A. Each first elastic pressing component includes several first linear bearings A mounted on the first support A, several first lifting columns mounted on the first linear bearings A, a first pressure plate connected to the lower end of the first lifting column, a first spring A mounted on the first lifting column, and a first limiting plate A mounted on the upper end of the first lifting column. The two ends of the first spring A abut against the first linear bearing A and the first pressure plate, respectively.

[0007] Furthermore, the first locking assembly includes a first support B mounted on the frame, a first linear guide rail A mounted on the first support B along the Y-axis, a first slide plate slidably mounted on the first linear guide rail A, a first linear module A mounted on the first support B for driving the first slide plate to slide, a first linear guide rail B mounted on the first slide plate along the X-axis, a first slide block slidably mounted on the first linear guide rail B, a first linear module B mounted on the first slide plate for driving the first slide block to slide, a first linear module C vertically mounted on the first slide block, and a first screw gun mounted at the output end of the first linear module C.

[0008] Furthermore, the first lifting assembly includes a first base plate mounted on the frame, several first linear bearings mounted on the first base plate, several guide rods mounted on the first linear bearings, a top plate connecting the upper ends of the several first guide rods, several positioning blocks mounted on the top plate, and a first cylinder mounted on the first base plate for driving the top plate to rise and fall.

[0009] Furthermore, the second screw-locking mechanism includes a second pressing assembly, a second lifting assembly, and a second locking assembly mounted on the frame.

[0010] Furthermore, the second pressing assembly includes a second support A mounted on the frame, a second elastic pressing component A and a second elastic pressing component B mounted on the second support A. The second elastic pressing component A includes several second linear bearings A mounted on the second support A, several second lifting columns A sleeved on the second linear bearings A, a second pressure plate A connected to the lower end of the second lifting columns, a second spring A sleeved on the second lifting columns, and a second limiting plate A mounted on the upper end of the second lifting columns. The two ends of the second spring A are... Do not abut against Linear Bearing A (No. 2) and Pressure Plate B (No. 2); the second elastic pressure component B includes several Linear Bearings B (No. 2) mounted on Support B, several Lifting Columns B (No. 2) mounted on Linear Bearings B, Pressure Plate B (No. 2) connected to the lower end of Lifting Columns B, Spring B (No. 2) mounted on Lifting Columns B, and Limiting Plate B (No. 2) mounted on the upper end of Lifting Columns B. The two ends of Spring B abut against Linear Bearing B (No. 2) and Pressure Plate B (No. 2); the length of Lifting Column A (No. 2) is greater than the length of Lifting Column B (No. 2).

[0011] Furthermore, the second locking assembly includes a second support B mounted on the frame, a second linear guide rail A mounted on the second support B along the Y-axis, a second slide plate A and a second slide plate B slidably mounted on the second linear guide rail A, a second linear module A mounted on the second support B for driving the second slide plate A to slide, a second linear module B mounted on the second support B for driving the second slide plate B to slide, a second linear guide rail C mounted on the second slide plate A along the X-axis, a second slide block A slidably mounted on the second linear guide rail C, and a mounting bracket. The following components are included: a second linear module C used to drive the second slide block A to slide on the second slide block A; a second linear guide rail D set on the second slide block B along the X-axis; a second slide block B slidably set on the second linear guide rail D; a second linear module D set on the second slide block B to drive the second slide block B to slide; a second linear module E set vertically on the second slide block A; a second screw gun A set at the output end of the second linear module E; a second linear module F set vertically on the second slide block B; and a second screw gun B set at the output end of the second linear module F.

[0012] Furthermore, the second lifting component has the same structure as the first lifting component.

[0013] Furthermore, the conveyor line includes an upper conveyor line mounted on the frame and a lower conveyor line located below the upper conveyor line, with both ends of the upper and lower conveyor lines protruding from the frame.

[0014] The method for tightening screws on the outer casing, using the aforementioned air compressor outer casing screw tightening device, includes the following steps: S1, placing the product pre-installed with bolts onto the product in the fixture; S2, the conveyor line transports the fixture to the corresponding position of the first screw tightening mechanism, and the first screw tightening mechanism performs the first screw tightening on the product; S3, the conveyor line transports the fixture to the corresponding position of the second screw tightening mechanism, and the second screw tightening mechanism performs the second screw tightening on the product.

[0015] Beneficial effects of the invention: By employing a first screw-locking mechanism and a second screw-locking mechanism to successively fasten screws to different screw holes on the same housing, compared to setting only one screw-locking mechanism, the time each product spends in the first and second screw-locking mechanisms is shorter, thus improving efficiency.

[0016] The first pressing component can press the upper surface of the product firmly, ensuring that the product is in a stable state when the screws are tightened at the first screw-locking mechanism.

[0017] The second screw-locking mechanism uses screwdriver A and screwdriver B to tighten different bolts, which facilitates equipment integration and reduces equipment size.

[0018] The second pressing assembly presses the two planes on the upper surface of the outer shell with the second elastic pressing component A and the second elastic pressing component B respectively, making the outer shell more stable after being pressed and reducing the shaking of the two planes due to different heights. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the screw-locking device for the air compressor housing provided in an embodiment of this application.

[0020] Figure 2 A schematic diagram of the first screw-locking mechanism of the air compressor housing screw-locking device provided in the embodiments of this application.

[0021] Figure 3 A schematic diagram of the first pressing assembly of the air compressor housing screw-locking device provided in an embodiment of this application.

[0022] Figure 4 A schematic diagram of the second screw-locking mechanism of the air compressor housing screw-locking device provided in the embodiments of this application.

[0023] Figure 5A schematic diagram of the second locking assembly of the air compressor housing screw-locking device provided for an embodiment of this application.

[0024] Figure 6 A schematic diagram of the second pressing assembly of the air compressor housing screw-locking device provided in an embodiment of this application.

[0025] The diagram is labeled as follows: 1. Frame; 2. Conveyor line; 3. Fixture; 4. First screw-locking mechanism; 5. Second screw-locking mechanism; 41. First pressing assembly; 42. First lifting assembly; 43. First locking assembly; 411. Support A; 412. Linear bearing A; 413. Lifting column; 414. Pressure plate; 415. Spring A; 416. Limiting plate A; 431. Support B; 432. Slide plate; 433. Linear die. Group A; 434, No. 1 slide block; 435, No. 1 linear module B; 436, No. 1 linear module C; 437, No. 1 screw gun; 421, first base plate; 422, first linear bearing; 423, No. 1 guide rod; 424, top plate; 425, positioning block; 426, first cylinder; 51, second pressing assembly; 52, second lifting assembly; 53, second locking assembly; 511, No. 2 support A; 512, No. 2 elastic pressing component A; 513, No. 2 elastic pressing component Component B; 121. Linear Bearing A (No. 2); 122. Lifting Column A (No. 2); 123. Pressure Plate A (No. 2); 124. Spring A (No. 2); 125. Limiting Plate A (No. 2); 131. Linear Bearing B (No. 2); 132. Lifting Column B (No. 2); 133. Pressure Plate B (No. 2); 134. Spring B (No. 2); 135. Limiting Plate B (No. 2); 5301. Support B (No. 2); 5302. Linear Guide Rail A (No. 2); 5303. Slide Plate A (No. 2); 5304. Slide Plate B (No. 2); 5305. Linear Module A (No. 2); Linear Module B (No. 2); Linear Guide C (No. 2); Slide A (No. 2); Linear Module C (No. 2); Linear Guide D (No. 2); Slide B (No. 2); Linear Module D (No. 2); Linear Module E (No. 2); Screwdriver A (No. 2); Screwdriver B (No. 2); Linear Module F (No. 2); Upper Conveyor Line; Lower Conveyor Line. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] like Figure 1As shown, the first embodiment provided in this application is an air compressor housing screw fastening device, which includes a frame 1, a conveyor line 2 arranged along the X-axis direction on the frame 1, a plurality of jigs 3 conveyed along the conveyor line 2, and a first screw fastening mechanism 4 and a second screw fastening mechanism 5 arranged on the frame 1 for fastening screws.

[0028] In actual use, the fixture 3 is conveyed to the corresponding position of the first screw-locking mechanism 4 via the conveyor line 2. The first screw-locking mechanism 4 locks the bolt A of the product. Then, the fixture 3 is conveyed to the corresponding position of the second screw-locking mechanism 5 via the conveyor line 2. The second screw-locking mechanism 5 locks the bolt B of the product.

[0029] The above design enables screws to be fastened to different locations on the product.

[0030] Specifically: such as Figure 2 and Figure 3 As shown, the first screw-locking mechanism 4 includes a first pressing assembly 41, a first lifting assembly 42, and a first locking assembly 43, all mounted on the frame 1. The first pressing assembly 41 includes a first support A411 mounted on the frame 1 and several first elastic pressing components mounted on the first support A411. Each first elastic pressing component includes several first linear bearings A412 mounted on the first support A411, several first lifting columns 413 mounted on the first linear bearings A412, a first pressure plate 414 connected to the lower end of the first lifting column 413, a first spring A415 mounted on the first lifting column 413, and a first limiting plate A416 mounted on the upper end of the first lifting column 413. The two ends of the first spring A415 abut against the first linear bearing A412 and the first pressure plate 414, respectively.

[0031] In actual use, when fixture 3 moves with conveyor line 2 to the corresponding position of the first screw-locking mechanism 4, the first lifting component 42 lifts fixture 3 from conveyor line 2, so that the product in fixture 3 is pressed by the first pressing component 41. During the lifting process of fixture 3, after the upper end face of the product contacts the first pressure plate 414, the first pressure plate 414 is lifted upward, so that the first pressure plate 414 drives the first lifting column 413 to move upward, thereby realizing the compression deformation of the first spring A415. When the first lifting component 42 stops lifting fixture 3, the first spring A415 remains unchanged. When the first lifting component 42 descends, fixture 3 moves down synchronously, so that the first pressing component 41 resets.

[0032] In the above design, the structural design and specific implementation of the first pressing component 41 facilitate the elastic pressing of the product with the first lifting component 42, ensuring that the product is in a stable state when the first locking component 43 locks the product.

[0033] Specifically: such as Figure 2 As shown, the first locking assembly 43 includes a first support B431 mounted on the frame 1, a first linear guide rail A mounted on the first support B431 along the Y-axis, a first slide plate 432 slidably mounted on the first linear guide rail A, a first linear module A433 mounted on the first support B431 for driving the first slide plate 432 to slide, a first linear guide rail B mounted on the first slide plate 432 along the X-axis, a first slide block 434 slidably mounted on the first linear guide rail B, a first linear module B435 mounted on the first slide plate 432 for driving the first slide block 434 to slide, a first linear module C436 vertically mounted on the first slide block 434, and a first screw gun 437 mounted at the output end of the first linear module C436.

[0034] In actual use, the first linear module A433 drives the first slide plate 432 to slide along the first linear guide rail, the first linear module B435 drives the first slide block 434 to slide along the first linear guide rail B, and the first linear module C436 drives the first screw gun 437 to rise and fall, so that the first screw gun 437 moves to the corresponding position of the predetermined screw hole, thereby realizing the tightening and locking of the bolt in the screw hole.

[0035] In the above design, the structural design and specific implementation of the first locking component 43 can realize the locking of bolts in bolt holes at different positions.

[0036] Specifically: such as Figure 2 As shown, the first lifting assembly 42 includes a first base plate 421 mounted on the frame 1, a plurality of first linear bearings 422 mounted on the first base plate 421, a plurality of first guide rods 423 sleeved on the first linear bearings 422, a top plate 424 connecting the upper ends of the plurality of first guide rods, a plurality of positioning blocks 425 mounted on the top plate 424, and a first cylinder 426 mounted on the first base plate 421 for driving the top plate 424 to rise and fall.

[0037] In actual use, when the fixture 3 moves above the first lifting assembly 42, the first cylinder 426 drives the top plate 424 to rise. During the rise of the top plate 424, the first guide rod 423 rises synchronously until the positioning block 425 positions the fixture 3, after which the top plate 424 lifts the fixture 3 from the conveyor line 2. When it is necessary to return the fixture 3 to the conveyor line 2, the first cylinder 426 resets, causing the top plate 424 to descend and the fixture 3 to return to the conveyor line 2.

[0038] In the above design, the structural design and specific implementation of the first lifting component 42 facilitate the lifting of the jig 3.

[0039] Specifically: such as Figure 4As shown, the second screw-locking mechanism 5 includes a second pressing assembly 51, a second lifting assembly 52, and a second locking assembly 53, all mounted on the frame 1.

[0040] In actual use, when the fixture 3 moves to the corresponding position of the second screw-locking mechanism 5, the second lifting component 52 lifts the fixture 3, so that the upper surface of the product in the fixture 3 is pressed by the second pressing component 51, and then the second locking component 53 locks the bolts pre-installed in the fixture 3.

[0041] In the above design, the structural design and specific implementation of the second screw-locking mechanism 5 can effectively realize the lifting of the jig 3 and the locking of bolts in different holes in the jig 3.

[0042] Specifically: such as Figure 4 and Figure 6 As shown, the second pressing assembly 51 includes a second support A511 mounted on the frame 1, a second elastic pressing component A512 and a second elastic pressing component B513 mounted on the second support A511. The second elastic pressing component A512 includes several second linear bearings A121 mounted on the second support A511, several second lifting columns A122 sleeved on the second linear bearings A121, a second pressure plate A123 connected to the lower end of the second lifting column A122, a second spring A124 sleeved on the second lifting column, and a second limiting plate A125 mounted on the upper end of the second lifting column. The second spring A12... 4. Both ends abut against the second linear bearing A121 and the second pressure plate, respectively; the second elastic pressure component B513 includes several second linear bearings B131 set on the second support, several second lifting columns B132 sleeved on the second linear bearings B131, a second pressure plate B133 connected to the lower end of the second lifting column, a second spring B134 sleeved on the second lifting column, and a second limiting plate B135 set at the upper end of the second lifting column. The two ends of the second spring B134 abut against the second linear bearing B131 and the second pressure plate, respectively; the length of the second lifting column A122 is greater than the length of the second lifting column B132.

[0043] It should be noted that the upper surface of the product is not flat and has two planes, including a higher plane and a lower plane. The hole for the second screw-locking mechanism 5 to be locked is on the lower plane.

[0044] In actual use, after the second lifting assembly 52 lifts the fixture 3, the higher plane of the upper surface of the product in the fixture 3 first contacts the second elastic pressure component A512, and then the lower plane contacts the second elastic pressure component B513. As the product continues to rise after contact, the second pressure plate A123 drives the second lifting column A122 to rise, compressing the second spring A124. The second pressure plate B133 drives the second lifting column B132 to rise, compressing the second spring B134. This continues until the product stops rising, at which point the second springs A124 and B134 cease deformation. As the second lifting assembly 52 drives the fixture 3 back to the conveyor line 2, the second spring pressure component A and the second elastic pressure component B513 gradually reset.

[0045] In the above design, the structural design and specific implementation of the second pressing component 51 can effectively press the upper surface of the product. Since the length of the second lifting column A122 is greater than the length of the second lifting column B132, it can achieve more stable pressure on the higher plane, thereby effectively preventing the product from shaking.

[0046] Specifically: such as Figure 4 and Figure 5 As shown, the second locking assembly 53 includes a second support B5301 mounted on the frame 1, a second linear guide rail A5302 mounted on the second support B5301 along the Y-axis, a second sliding plate A5303 and a second sliding plate B5304 slidably mounted on the second linear guide rail A5302, a second linear module A5305 mounted on the second support B5301 for driving the second sliding plate A5303 to slide, a second linear module B5306 mounted on the second support B5301 for driving the second sliding plate B5304 to slide, a second linear guide rail C5307 mounted on the second sliding plate A5303 along the X-axis, a second slide block A5308 slidably mounted on the second linear guide rail C5307, and a second sliding block A5308 mounted on the second sliding plate A5303. The system includes: a second linear module C5309 on plate A5303 for driving the sliding of the second slide block A5308; a second linear guide rail D5310 mounted on the second slide block B5304 along the X-axis; a second slide block B5311 slidably mounted on the second linear guide rail D5310; a second linear module D5312 mounted on the second slide block B5304 for driving the sliding of the second slide block B5311; a second linear module E5313 vertically mounted on the second slide block A5308; a second screw gun A5314 at the output end of the second linear module E5313; a second linear module F5316 vertically mounted on the second slide block B5311; and a second screw gun B5315 at the output end of the second linear module F5316. Screw guns A5314 and B5315 are compatible with different types of bolts, namely bolt A and bolt B, respectively.

[0047] In actual use, linear module A5305 drives slide plate A5303 to slide along linear guide rail A5302; linear module B5306 drives slide plate B5304 to slide along linear guide rail A5302; linear module C5309 drives slide block A5308 to slide along linear guide rail C5307; linear module D5312 drives slide block B5311 to slide along linear guide rail D5310; linear module E5313 drives screwdriver A5314 to rise and fall; linear module F5316 drives screwdriver B5315 to rise and fall, so that screwdrivers A5314 and B5315 reach their predetermined positions and then respectively tighten bolts A and B.

[0048] In the above design, the structural design and specific implementation of the second fastening component 53 can effectively fasten screws of different types at different locations on the product.

[0049] Specifically, the second lifting component 52 has the same structure as the first lifting component 42.

[0050] In the above design, the second lifting component 52 has the same structure as the first lifting component 42, which is convenient to manufacture and meets the lifting requirements of the jig 3.

[0051] Specifically: such as Figure 1 As shown, the conveyor line 2 includes an upper conveyor line 212 disposed on the frame 1 and a lower conveyor line 222 located below the upper conveyor line 212. Both ends of the upper conveyor line 212 and the lower conveyor line 222 protrude from the frame 1.

[0052] In actual use, this application is integrated with an external production line as a workstation. The unloaded fixture 3 is conveyed along the lower conveyor line 222, and the fully loaded fixture 3 is conveyed in the upper conveyor line 212.

[0053] In the above design, the structural design and specific implementation of the conveyor line 2 can effectively realize modular application.

[0054] The second embodiment provided in this application is a method for tightening screws on the outer casing of an air compressor, using the aforementioned screw-tightening device for the outer casing, and includes the following steps: S1, placing a product pre-loaded with bolts onto the product in the fixture 3; S2, conveying the fixture 3 to the corresponding position of the first screw-tightening mechanism 4 via the conveyor line 2, and performing the first screw-tightening on the product via the first screw-tightening mechanism 4; S3, conveying the fixture 3 to the corresponding position of the second screw-tightening mechanism 5 via the conveyor line 2, and performing the second screw-tightening on the product via the second screw-tightening mechanism 5.

[0055] In the above design, the screw-locking method for the outer casing can be used to fasten screws to each screw hole of the outer casing, thereby improving screw-locking efficiency.

[0056] In further detail, it should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air compressor housing screw-locking device, comprising a frame (1), a conveyor line (2) arranged along the X-axis direction on the frame (1), and a plurality of fixtures (3) conveyed along the conveyor line (2), characterized in that: It also includes a first screw-locking mechanism (4) and a second screw-locking mechanism (5) provided on the frame (1) for locking screws; The first screw-locking mechanism (4) includes a first pressing assembly (41) mounted on the frame (1), a first lifting assembly (42) mounted on the frame (1), and a first locking assembly (43). The first pressing assembly (41) includes a first support A (411) mounted on the frame (1) and a plurality of first elastic pressing elements mounted on the first support A (411). The first elastic pressing elements include a plurality of first linear pressing elements mounted on the first support A (411). Bearing A (412), several No. 1 lifting columns (413) sleeved on No. 1 linear bearing A (412), No. 1 pressure plate (414) connected to the lower end of No. 1 lifting column (413), No. 1 spring A (415) sleeved on No. 1 lifting column (413), and No. 1 limiting plate A (416) set at the upper end of No. 1 lifting column (413), wherein the two ends of the No. 1 spring A (415) abut against the No. 1 linear bearing A (412) and the No. 1 pressure plate (414) respectively; The first locking assembly (43) includes a first support B (431) mounted on the frame (1), a first linear guide rail A mounted on the first support B (431) along the Y-axis direction, a first slide plate (432) slidably mounted on the first linear guide rail A, a first linear module A (433) mounted on the first support B (431) for driving the first slide plate (432) to slide, a first linear guide rail B mounted on the first slide plate (432) along the X-axis direction, a first slide block (434) slidably mounted on the first linear guide rail B, a first linear module B (435) mounted on the first slide plate (432) for driving the first slide block (434) to slide, a first linear module C (436) vertically mounted on the first slide block (434), and a first screw gun (437) mounted at the output end of the first linear module C (436). The first lifting assembly (42) includes a first base plate (421) mounted on the frame (1), a plurality of first linear bearings (422) mounted on the first base plate (421), a plurality of first guide rods (423) mounted on the first linear bearings (422), a top plate (424) connected to the upper ends of the plurality of first guide rods, a plurality of positioning blocks (425) mounted on the top plate (424), and a first cylinder (426) mounted on the first base plate (421) for driving the top plate (424) to rise and fall; The second screw-locking mechanism (5) includes a second pressing assembly (51) mounted on the frame (1), a second lifting assembly (52) mounted on the frame (1), and a second locking assembly (53).

2. The screw-locking device for the air compressor housing according to claim 1, characterized in that: The second pressing assembly (51) includes a second support A (511) mounted on the frame (1), a second elastic pressing component A (512) mounted on the second support A (511), and a second elastic pressing component B (513). The second elastic pressing component A (512) includes several second linear bearings A (121) mounted on the second support A (511), several second lifting columns A (122) sleeved on the second linear bearings A (121), a second pressure plate A (123) connected to the lower end of the second lifting column, a second spring A (124) sleeved on the second lifting column, and a second limiting plate A (125) mounted on the upper end of the second lifting column. The second spring A (124) Both ends abut against the second linear bearing A (121) and the second pressure plate, respectively; the second elastic pressure component B (513) includes several second linear bearings B (131) set on the second support, several second lifting columns B (132) sleeved on the second linear bearings B (131), the second pressure plate B (133) connected to the lower end of the second lifting column, the second spring B (134) sleeved on the second lifting column, and the second limiting plate B (135) set on the upper end of the second lifting column. Both ends of the second spring B (134) abut against the second linear bearing B (131) and the second pressure plate, respectively; the length of the second lifting column A (122) is greater than the length of the second lifting column B (132).

3. The screw-locking device for the air compressor housing according to claim 1, characterized in that: The second locking assembly (53) includes a second support B (5301) mounted on the frame (1), a second linear guide rail A (5302) mounted on the second support B (5301) along the Y-axis, a second slide plate A (5303) and a second slide plate B (5304) slidably mounted on the second linear guide rail A (5302), a second linear module A (5305) mounted on the second support B (5301) for driving the second slide plate A (5303) to slide, a second linear module B (5306) mounted on the second support B (5301) for driving the second slide plate B (5304) to slide, a second linear guide rail C (5307) mounted on the second slide plate A (5303) along the X-axis, a second slide block A (5308) slidably mounted on the second linear guide rail C (5307), and a second slide block A (5308) mounted on the second slide plate A (5304). (5303) includes a second linear module C (5309) for driving the second slide A (5308) to slide, a second linear guide D (5310) set on the second slide plate B (5304) along the X-axis, a second slide B (5311) slidably set on the second linear guide D (5310), a second linear module D (5312) set on the second slide plate B (5304) for driving the second slide B (5311) to slide, a second linear module E (5313) set vertically on the second slide A (5308), a second screw gun A (5314) set at the output end of the second linear module E (5313), a second linear module F (5316) set vertically on the second slide B (5311), and a second screw gun B (5315) set at the output end of the second linear module F (5316).

4. The screw-locking device for the air compressor housing according to claim 1, characterized in that: The second lifting component (52) has the same structure as the first lifting component (42).

5. The screw-locking device for the air compressor housing according to claim 1, characterized in that: The conveyor line (2) includes an upper conveyor line (21) disposed on the frame (1) and a lower conveyor line (22) located below the upper conveyor line (21), both ends of the upper conveyor line (21) and the lower conveyor line (22) protruding from the frame (1).

6. A method for tightening screws on the housing of an air compressor, employing the screw-tightening device for the housing of an air compressor as described in any one of claims 1 to 5, characterized in that: The process includes the following steps: S1, placing the product with pre-installed bolts onto the product in the fixture (3); S2, the conveyor line (2) conveys the fixture (3) to the corresponding position of the first screw-locking mechanism (4), and the first screw-locking mechanism (4) performs the first screw-locking on the product; S3, the conveyor line (2) conveys the fixture (3) to the corresponding position of the second screw-locking mechanism (5), and the second screw-locking mechanism (5) performs the second screw-locking on the product.

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